Coupling



Nov. 26, 1929.

R. L. AUMACK COUPLING Filed Sept. 2, 1927 WWW Patented Nov. 26, 1929UNITED STATES PATENT OFFICE A RAYMOND L. AUMACK, or ROSELLE, NEW JERSEYCOUPLING Application filed September 2; 1927. Serial No. 217,053.

This invention relates to couplings for by which the annulus may befirmly secured pipes and other cylindrical objects, and more upon thepipe. particularly to couplings which permit the The annulus 7 ismachine finished all over connected pipes to rotate respectively one toincluding its enlarged outer end, together the other. with a shoulder10. 55

It is therefore one of the objects of the in- On the abutting pipe 5secured by screw vention to provide a coupling composed esthreads, is acollar 12, preferably having a sentially of two parts each firmlyengaged polygonal exterior suited to receivea wrench upon the abuttingends of the pipes to be conby which it may be firmly engaged in opera-10 nected and which will permit relative rotative position. 60 tion.Extending integrally from the collar 12,

A further feature is in the provision of a over the annulus 7 is anenlarged sleeve 13 coupling to present an impervious joint bereduced indiameter at its outer portion 1 1 tween coupled elements. internallybored to receive the outer portion I 15 Another purpose is to produce acoupling 8 of the'annulus, there being interposed a 65 composed of fewand simple parts which can gasket v15, of leathenor like substance,serving be economically manufactured and easily apas a'packingbetween'the finished seat 16 of plied. the collar and the enlargedportion 8 of the These and other important features are acannulus. V l 1I complished by the novel design, construction The reduced end portion 1L of the collar is and application of parts hereinafter deinternallythreaded and provided with a pluscribed and shown in the accompanyingrality of screw threaded openings to receive drawings, forming amaterial part of this screw bolts 17 by which is engaged a keeperdisclosure, and in which 18; curved conformably to the surface of Figure1 is a partial side, partial longithe element 1 1 and provided withtransverse 75 tudinal sectional view of two pipes as conadjusting slots19 through which the screw nected by an embodiment of the invention. 17passes.

Figure 2 is an end view of the coupling as The keeper has an angularlybent clip 20 applied. 0 adapted to engage in the space between twoFigure 3 is a fragmentary side View of the of the adjacent lugs 21 on aring 22, screw 80 same, taken in a plane at a right angle to threadedcircumferentially to engage with Figur 1. the internal threads of theelement 14, its in- Describing the drawing more in detail, the nersurface fitting the exterior of the smaller numeral 5 designates one ofthe pipes and 6 dlametered portion of the annulus 7.

the other, the pipes being of the usual thin p s d e ween the lnner edgeof the 85 walled cylindrical type commonly used in e 22 and h Shoulderof annulus 1S conveying i id d gases a fiat brass ring 23 whichobvlously may be Such pipes a e ft used in the convey ad ustably clampedby the r ng 22, which can ance of liquids which necessitate rotation ofturnedhby a 5 the fi engagmg the the various pipe sections and obviouslythe fi 25 m 6mg 801118 Y Spaced Over connections must be of a highlyeffective type 6 en 0 e In order to provide an effective joint all to PgPosslble leaks of the hqmd of the several contacting surfaces arepreferveye ably finished by grinding so that accurate fits Both abuttingend PortlonS of the plpes are maintained, as for instance, the elements95 are Screw threaded f g d y the 8 and 13, and? and 22 while theabutting surtlll'ead Of 0118 Of the P P as IS an faces contacting withthe gasket or brass are nulus 7 having a diametrically enlarged poriilarly finished, tion 8 at its outer end, and provided with In operationit will be seen that the anopenings 9 to receive a spanner or likewrench nulus 7 -8 may turn respectively to the collar 12-14, withoutinterfering with the efficiency of the joint, and that the packings 15and 23 may be adjusted by the ring 22.

Although the foregoing is generally descriptive of the construction andoperation of the invention, it will be understood that minor changes maybe resorted to within the scope of the appended claims.

Having thus. described my invention what I claim as new and desire tosecure by Letters Patent is i 1. A coupling for relatively rotatablecylinders comprising a stepped annulus fixed on one cylinder, a collarfixed on the adv jacent cylinder, a sleeve integral with said collartoenvelop said annulus, a ring threaded in said sleeve to impinge on thestep cofsaid annulus whereby :the annulus may. be adjusted with respectto said collar, a plurality of lugs extending from said ring, andakeeper clip, said clip including a member adjustably mounted :on thesleeve and a projection at right angles to the member to engage betweenany two adjacent lugs.

2. A coupling for relatively rotatable cylinderscomprising asteppedannulus fixed on one cylinder, a collar fixed on the adjacent cylinder,a sleeve integral-with said-collar to envelop saidnannulus, a ringthreaded in said sleeve to impinge on the step of said annulus wherebythe annulus may be adjusted with respect .tosaid collar, a:p1urality oflugs :extending from said ring, .and akeeper clip, said clip including aslotted memberand :a set i screw. foradjustaibly mounting the clip onthe sleeve, saidmember having an angular, projection adapted to engagebetween any two adjacent lugs. v v

This specification signed and witnesse this'25th daylof August, 1927.

RAYMOND L. AUMACK.

